diff --git a/tigon-service-support/src/main/java/me/chyxion/tigon/service/support/BaseServiceSupport.java b/tigon-service-support/src/main/java/me/chyxion/tigon/service/support/BaseServiceSupport.java
index 1f3404a..34984f5 100644
--- a/tigon-service-support/src/main/java/me/chyxion/tigon/service/support/BaseServiceSupport.java
+++ b/tigon-service-support/src/main/java/me/chyxion/tigon/service/support/BaseServiceSupport.java
@@ -56,9 +56,8 @@ public class BaseServiceSupport
      */
     @Override
     public ViewModel<Model> toViewModel(Model model) {
-        ViewModel<Model> viewModel =
-            new ViewModel<Model>(model);
-        log.debug("Model [{}] To View Model.", model);
+        final ViewModel<Model> viewModel = new ViewModel<>(model);
+        log.debug("Model [{}] to view model.", model);
         processViewModel(viewModel, model);
         return viewModel;
     }
@@ -68,9 +67,9 @@ public class BaseServiceSupport
      */
     @Override
     public List<ViewModel<Model>> toViewModel(List<Model> models) {
-        List<ViewModel<Model>> viewModels = null;
+        final List<ViewModel<Model>> viewModels;
         if (models != null && !models.isEmpty()) {
-            viewModels = new ArrayList<ViewModel<Model>>(models.size());
+            viewModels = new ArrayList<>(models.size());
             for (Model model : models) {
                 viewModels.add(toViewModel(model));
             }
@@ -82,14 +81,23 @@ public class BaseServiceSupport
     }
 
     /**
+     * url cache clear
      * @param model model
      * @param url url
      * @return url
      */
     protected String urlCacheClear(M1<PrimaryKey> model, String url) {
-        Date dateUpdated = model.getDateUpdated();
-        return dateUpdated != null ? 
-            url + "?_d=" + dateUpdated.getTime() : url;
+        return urlCacheClear(url, model.getDateUpdated());
+    }
+
+    /**
+     * url cache clear
+     * @param url url
+     * @param date date
+     * @return url
+     */
+    protected String urlCacheClear(final String url, final Date date) {
+        return date != null ? url + "?_d=" + date.getTime() : url;
     }
 
     /**